CN1312464A - Detection for closed surface of container - Google Patents
Detection for closed surface of container Download PDFInfo
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- CN1312464A CN1312464A CN01111666A CN01111666A CN1312464A CN 1312464 A CN1312464 A CN 1312464A CN 01111666 A CN01111666 A CN 01111666A CN 01111666 A CN01111666 A CN 01111666A CN 1312464 A CN1312464 A CN 1312464A
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- container
- sealing surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/9054—Inspection of sealing surface and container finish
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Apparatus for inspecting the sealing surface area of a container finish that includes a light source positioned to direct a collimated line-shaped light beam onto the sealing surface area of a container. The line-shaped light beam at the container sealing surface area has a long dimension orthogonal to the container axis, and a narrow dimension tangential to the container axis. A light sensor is disposed to receive portions of the line-shaped light beam reflected from the sealing surface area, and provides an electrical output signal that varies with height or level of the sealing surface area with respect to the light source and sensor. A lens system is disposed to direct onto the light sensor only light energy reflected from the container sealing surface area in planes parallel to the common plane of the container axis and the sensor.
Description
The present invention relates to the detection of container, relate in particular to a kind of method and apparatus that is used for the production deviation in detection receptacle sealing surfaces zone.
Patent US3313409 discloses a kind of device that is used to detect glass container, and wherein, the sprocket wheel transport box is in proper order by a series of measuring stations.On the measuring station therein, each container has selected some dimensional parameters to detect with contacting of roller by container, roller is connected with sensor, and rotary container rotates around its central axis, and the output signal that sensor is provided is directly proportional with the function of container parameters deviation.Especially because the rotation of container, the height of container, sealing surfaces crooked and tilt, and the location of the container end portion of warpage be by measuring with the roller of seal of vessel surface engaged.This roller is connected with deviation that is characterized in height (level) on the sealing surfaces or the LVDT sensor of the analog electrical signal that departs from are provided.When if measuring-signal departs from desirable standard and special circumstances, the suitable electric signal that these provided drives a telescopic plunger that is used for container is broken away from pipeline.Roller is subjected to the restriction of mechanical wear with contacting of seal of vessel surface, and can cause the dirty of sealing surfaces.In addition, the size of roller defines the size of container in some adaptable parties concerned, and height tolerance size (variation) can be measured.This moving-member needs maintenance and repair.In addition, the structure of this roller is unsuitable for measuring the height at arbitrary line edge or the overlap in the sealing surfaces lid.
Patent US4945228 discloses a kind of device that is used for the sealing surfaces zone of detection receptacle product, and this device comprises the light source that is used to shine sealing surfaces of a location, and at this moment, container is stabilized fixing and rotates around its central axis.A video camera, light sensitive component comprising a linear array or matrix (zone) arrangement, these light sensitive components are corresponding to the rotation axis location and the orientation of container, and reception is by the light of sealing surfaces reflection, the effective viewing area that this video camera has, this viewing area defines a bight less than the whole circumference on seal of vessel surface.Video camera array develops into each sign intensity information of arranging on element in the variation that container rotates and is scanned as the function of this variation, and is detected as the production deviation of the closed surface of container of the function of these information.This device of the disclosure is that the production deviation that the reflex detection is produced is played on a kind of seal of vessel surface that is used in well, as: the impurity of glassware defective deviation, bubble, shading admixture and vessel surface.Yet, disclosed device is not suitable for the dimensional parameters on measuring vessel surface, as: the height on seal of vessel surface, seal of vessel surface crooked with tilt and/or (speech " production deviation " is meant the deviation that can influence the product qualification at the height at the lip-deep arbitrary line of seal of vessel edge or overlap, speech " sealing surfaces zone " not only is meant sealing surfaces itself, also refers to arbitrary line edge, overlap or other production deviation on sealing surfaces).
Patent US5489978 discloses a kind of device that is used for the sealing surfaces zone of detection receptacle, and what comprise a location is radiated at the light source of a narrow beam light of closed surface of container with acute angle, and at this moment, container rotates around its central axis.One is used to receive from the optical sensor of a narrow beam luminous energy of sealing surfaces reflection, and the output signal of function of change in location of the incident angle of the folded light beam of a conduct on sensor is provided.That is to say, folded light beam is incident on the sensor, corresponding to the change in location of light source and sensor, and the output signal of the function of the change in location that provides a conduct to be reflected in the incident angle on the sensor is provided this sensor on the level of sealing surfaces or height.Deviation on the height of sealing surfaces is detected as the function of sensor output signal.In one embodiment, light source/sensor be arranged in pairs vessel axis to the side of relative external diameter, and the bending of the sealing surfaces of container, inclination and/or warpage are detected as the function of functions of the change in location of the incident angle of the folded light beam on sensor when container rotates.
Patent US5896195 discloses a kind of device that is used for the sealing surfaces of detection receptacle end, comprise such configuration, when container moves corresponding to light source, no matter be laterally to move or rotate, the light source of location with parallel wire light beam irradiates at closed surface of container.Linear beam on closed surface of container has one and passes the elongated dimension linear beam in sealing surfaces zone, a narrow dimension linear beam tangent with container axis perpendicular to container axis and in the direction of string.Set light source is used to receive the part from the linear beam of sealing surfaces regional reflex, and an electronic output signal that changes corresponding to the height or the horizontality of the sealing surfaces of light source and sensor is provided.Sensor is connected with auxiliary electronic device, is used to provide the characterization information of sealing surfaces height.Regulate of swing and the misalignment of sealing surfaces zone at the elongated dimension linear beam of closed surface of container corresponding to light source and sensor.In addition, produce a reflection at the elongated radial size light beam of the linear beam of closed surface of container arbitrary line edge or the overlap in the container finish on sensor, like this, on sensor, just produced the information of the height and the entity of arbitrary line edge or overlap.
Although in the disclosed device of above-mentioned institute's patent, overcome some problems that prior art exists, and kept some needed improvement.For example, in the disclosed device of US5489987 patent, adopted the narrow area detector of the one or both sides that are installed in sealing surfaces, if, can not receive signal from container for not motion point-blank of the container that is in critical localisation.In the disclosed device of US5896195 patent, overcome this problem, but brought other problem again, be that it finally will receive discrete reflection from the relative string portion in sealing surfaces zone, this can disturb or cover the measurement of height in a side of sealing surfaces.An object of the present invention is to provide a kind of apparatus and method of underproof production deviation of the improved sealing surfaces that is used for detection receptacle.Other purpose of the present invention provides a kind of apparatus and method that are suitable on a measuring station with a kind of multiple deviation of technology detection receptacle sealing surfaces.Other purpose of the present invention provides the optics of sealing surfaces on a kind of detection receptacle surface and the apparatus and method of size characteristic.
An object of the present invention is to provide a kind of apparatus and method of preliminary dimension feature of the sealing surfaces zone that is used for measuring vessel surface, the disclosed type of especially above-mentioned US5489987 patent, wherein measure technology and be characterised in that at sealing surfaces by improving, avoided deviations and swing, and the discrete reflectance in measured zone.Other purpose of the present invention provides a kind of apparatus and method in whole production economic stability in the cycle that achieve the above object.Other purpose of the present invention provides a kind of apparatus and method with described feature, wherein in alternate embodiments, can provide job operation at the hot junction and the cold junction of glass devices.
The pick-up unit that is used for the sealing surfaces zone of vessel surface comprises the light source (as: having the long size that is multiple times than width) of a branch of parallel linear beam in the sealing surfaces zone that is radiated at a container of a directional transmissions.Linear beam in the sealing surfaces zone of container has a long size and the short size tangent with the axis of container with the axis normal of container.An optical sensor of being arranged is used to receive the part from the linear beam of sealing surfaces regional reflex, and provides a reflection sealing surfaces zone corresponding to the height of light source and sensor and the electronic output signal of level variation.The lens system of arranging, only make irradiate light from container sealing surfaces reflection on optical sensor, and it is also parallel to each other on a plane with container axis and sensor, but, basically avoided discrete reflection, comprise the reflection of other point from container, and not with this plane parallel.
This sensor is connected with auxiliary electronic device, is used to provide the characterization information of sealing surfaces height.In this embodiment, no matter by between image, moving,, obtain a plurality of images at sensor from the different parts of sealing surfaces still by adopting a plurality of laser rays and from the reflection of sealing surfaces with respect to light source and sensor.Elongated dimension at the lip-deep linear beam of seal of vessel is adjusted in sealing surfaces feasible swing and misalignment with respect to light source and sensor.In addition, elongated radial size line edge from container finish on sensor at the lip-deep linear beam of seal of vessel produces reflection, like this, no matter whether the height at line edge surpasses the height of sealing surfaces, all produces the height at arbitrary such line edge and the characterization information of entity on sensor.
Sensor in this embodiment of the present invention and light source arrangement are on the sealing surfaces zone of container, and corresponding each other orientation and corresponding to closed surface of container, segment beam incident is also corresponding to each other usually 90 ° of corner reflections from closed surface of container, nominally vertical with sealing surfaces (speech " nominally " be meant at ideal or design height and sealing surfaces and be orientated under the main condition, any and such ideal height and directed departing from will make container dwindle, perhaps the swing on vessel surface may cause departing from " nominally " reflection ray and angle).Nominally sensor and light source are arranged in the plane, and be with the parallel axes of container, vertical with sealing surfaces.Optical sensor in this embodiment of the present invention comprises the sensor of a series of line spread, and lens combination penetrate from the both sides of sealing surfaces two luminous points on the sensor of line spread.If luminous point incident, the both sides of sealing surfaces are in equal height.If luminous point is in the diverse location of sensor array, so, their are inevitable from the different position of surface elevation, as: hold up on the surface, bending etc.Because the catoptrical position on array is exactly the height on the plane of sealing surfaces, the absolute altitude of closed surface of container can be measured.
With reference to accompanying drawing, subsidiary claims, by the present invention is described in detail, the purpose that the present invention had, feature and advantage will be clearer, and wherein accompanying drawing is:
Fig. 1 is the schematic representation of apparatus according to the sealing surfaces that is used for detection receptacle of one embodiment of the present of invention;
Fig. 2 is the decomposing schematic representation of principle of work embodiment illustrated in fig. 1;
Fig. 3 is the synoptic diagram that is in so-called hot junction processing technology according to the device of the sealing surfaces that is used for detection receptacle of the present invention;
Fig. 4-the 8th, the decomposing schematic representation of the principle of work of light of the present invention.
With reference to Fig. 1, a conveying belt 20 that mainly comprises a sprocket wheel and a slide plate 21, conveying belt 20 is connected with the molded container source, makes container 22 be delivered to the position of sealing surfaces measuring station 24 continuously.The layout of a kind of sprocket wheel conveying belt container measuring station like this is open, as: in above-mentioned US3313409 patent.A bottle wheelwork 26 is as drive roller, is being on the station 24 on order and each container 21 position engaged, and making container center on its central axis 25 to rotate, and this moment, container was clamped in the fixed position by conveying belt.A scrambler 28 that is connected with the container rotating mechanism provides the characterization signal of angle position increment.Like this, when container rotated with constant speed, the container rotation increments can comprise the angle position fixed increment, or fixed time increment.A detector 30 in the worker location on 24 of standing, provides the current characterization signal of container 22 as switch.
In embodiments of the invention shown in Figure 1, container 22 comprises a molded vial, and this vial has a cylinder 32 and a common cylindrical neck portion 34 that protrudes upward from the shoulder 35 of bottle.The end of container comprises a last neck 34 according to the detected sealing surfaces 36 of the present invention that ends at the opposite lid vertically.Article one, Unitarily molded at the end wall outside surface around the screw thread 38 of its oral area, and a skirt section that is formed in lid on the end wall outside surface or 40, one lids of shoulder can be fixing with it in mode commonly used, and lid is fixed on the container.Because container is molded characteristic, one reduces portion gradually and can exist with the inboard form around the diameter of sealing surfaces 36.Exceeding line edge of formation on the height that reduces portion gradually.When the line edge surpasses the height of sealing surfaces, just formed an overlap.For various reasons, do not wish wired edge or overlap, and can be expressed as the problem of container in molded.In the described embodiments of the invention of Fig. 1, a kind of be used for the detecting level of on sealing surfaces 36 (reducing portion gradually) and the method and apparatus of height are proposed.In this respect, be appreciated that described in this application speech " sealing surfaces " generally comprises that not only sealing surfaces 36 is own as one, also comprises reducing portion gradually.
A message handler 60 (Fig. 1) receives the signal that characterizes the container current state on the measuring station from detector 30, characterizes the signal of container rotation increments from scrambler 28.Video camera 52 is connected with message handler 60 equally, is used to receive the control signal from message handler 60, and is used to provide the output signal of the incoming position of the reflection luminous energy 54 to the sign sensor 58 of message handler 60.Message handler 60 also is connected with display 62, is used for display image to the operator, and provides one to repel signal to suitable mechanism, is used to remove the defective container from the pipeline.
In the embodiment of Fig. 1-2, the light source/sensor system and between relative motion be by roller 26 or realize with contacting of container similarly, and make that container centers on its axis 25 and rotates.A kind of technology like this is suitable for so-called glass devices cold junction processing technology, as: the outlet of low temperature glass annealing furnace is cold and is rigidity at this place's container.Yet so a kind of technology is not suitable for so-called glass devices hot junction processing technology, as: between glass working machine and low temperature glass annealing furnace, because roller thermal deformation may take place and makes the sidewall deliquescing of container.Fig. 3 shows a kind of at the thermal capacitance device of carrying between processing equipment and low temperature glass annealing furnace on the endless belt 22.Scrambler 28 is connected with travelling belt 64, and the signal that the motion of sign travelling belt/container is provided is to message handler 60 (Fig. 1), wherein with the constant speed movement device, and can fixed range increment and fixed time increment.Message handler 60 smear cameras 52 are at the increment of container 22 linear movements, so that obtain the image of a plurality of light beams 46 from the sealing surfaces regional reflex.For example, video camera 52 can obtain ten images, and wherein the laser rays direction that extends in string is passed the sealing surfaces zone.To show with the form of luminous point with respect to another dark side from the light beam of sealing surfaces regional reflex.Images in the video camera 52 extend upwardly to sealing surfaces zone 36 calibrated altitude below, with the basic deviation of regulating on swing and the height.
According to special characteristic of the present invention, lens combination 72 is used for the sensor 58 of aligned with camera 52 between seal of vessel surface 36 and video camera 52, only be in parallel plane plane with axis 25 and sensor 58 from container sealing surfaces regional reflex light on.That is to say that sensor 58 preferably includes one to have the sensing element ccd array of line spread or be arranged in and (and being in 45) container axis 25 conplane pixels and vertical with the long size of illuminating bundle 46.In addition, sensor 58 can comprise the sensor of an area arrangement, and writes down working condition of the present invention, and wherein, the row or column of pixel and axis 25 are in same plane.If the sensor of this area arrangement is used for other measuring ability, this modification can have special purposes.Pixel line in the sensor is not in same plane with container axis, as shown in Figure 8, can be used in the warpage deviation of determining the end.
The inventive system comprises special lens combination 70, in the plane of Fig. 5 and Fig. 7, detect and the container/light of sensor parallel radiation on sensor in the electronics mode.The layout of array 58 has selected to be parallel to the light of optical axial effectively on the focus of Fresnel or spherical lens 74, and this light only is the output light that comes from array.These light are by the light of laser rays along the illuminating ray reflection from the peak that is located on or near sealing surfaces or summit.Like this, in Fig. 8, light 54a, 54b parallel to each other and with axis 25 and sensor 58 residing plane parallel.After 70 refractions of scioptics system, shine the effective coverage of the sensor 58 that is positioned on the lens combination focal line.On the other hand, light 54f and 54g are not parallel to axis 25.After the refraction, these light focusings are departing from the some 54k of sensor 58.Like this, sensor 58 does not respond the light 54f and the 54g of reflection.
Above-mentioned purpose and target satisfy disclosed apparatus and method fully.Can carry out some substitutions and modifications.Those of ordinary skill in the art can modify and replace on the basis of the above description.The intent of the present invention is to understand it as all substitutions and modifications in the scope of essence and claim.
Claims (8)
1. accurately machined device that is used for detection receptacle (22), described container (22) has a central axis (25) and a peristome, this oral area by one with the axial relative sealing surfaces of container lid engagement on (36) center on, described device comprises:
The a branch of parallel linear beam of the emission of a location (46) is radiated at the light source (44) in the sealing surfaces zone of container, pass completely through sealing surfaces zone incident in the both sides of container axis with this linear beam, this light beam (46) comprises the linear beam vertical with sealing surfaces (36) and one and the tangent narrow dimension light beam of container axis with long size, light sensor arrangement (52) be arranged in the common plane of described axis on, reception is from the described linear beam of the sealing surfaces regional reflex of container, the irradiate light that lens devices (70) is used for closed surface of container is reflected is at described optical sensor, and device (60) is used to detect in the horizontal direction the deviation of sealing surfaces as the function of the incoming position of the light that reflects at described light sensor arrangement, and it is characterized in that: described lens devices (70) is radiated on the described sensor device (52) by the reflection ray in the sealing surfaces zone (36) in only parallel with the described common plane plane.
2. according to the described device of claim 1, it is characterized in that: lens devices (70) and described sensor device (52) all comprise a full images system that only is used for the light of sealing surfaces zone (36) reflection in the plane parallel with described common plane.
3. according to the described device of claim 2, it is characterized in that: described sensor device (52) comprises a linear array sensor (58) perpendicular to the light sensitive component of described long size wire beam position.
4. according to the described device of claim 3, wherein said lens devices (72) comprises a cylindrical lens (72) and Fresnel or spherical lens (74), and wherein said linear array sensor (58) is positioned at the focus place of described Fresnel or spherical lens.
5. according to the described device of above-mentioned arbitrary claim, wherein said error measuring means (60) comprise the device of the difference in height that is used for the opposite flank between the detection receptacle oral area external diameter, and this difference in height is incident on the function of the alternate position spike of described sensor device as the light that reflects from the opposite flank of described external diameter.
6. the described device of 1-4 in requiring according to aforesaid right comprises that also being used for holding vessels is in settling position below described light source (44) and the described sensor device (52) and the rotary container device (20,26) around its axis rotation.
7. the described device of 1-4 in requiring according to aforesaid right also comprises the device (64) that is used for below described light source (44) and described sensor device (52) transport box on perpendicular to described axis direction.
8. device that is used for the end of detection receptacle, the end of described container has a central axis and a peristome, by axial relative being centered around on the oral area sealing surfaces, said method comprising the steps of:
(a) under detected state, launch a branch of parallel wire light beam irradiates downwards in the sealing surfaces zone of container, like this, described linear beam tangentially passes closed surface of container and in the incident of the both sides of container finish,
(b) from the irradiate light of the sealing surfaces regional reflex that only is in the container in the plane parallel with container axis on optical sensor, and
(c) detect sealing surfaces as in deviation in the horizontal direction at the function of described optical sensor incoming position from sealing surfaces zone two lateral reflections.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/488,843 US6256095B1 (en) | 2000-01-21 | 2000-01-21 | Container sealing surface area inspection |
US09/488843 | 2000-01-21 |
Publications (2)
Publication Number | Publication Date |
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CN1312464A true CN1312464A (en) | 2001-09-12 |
CN1196928C CN1196928C (en) | 2005-04-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB011116668A Expired - Fee Related CN1196928C (en) | 2000-01-21 | 2001-01-20 | Detection for closed surface of container |
Country Status (17)
Country | Link |
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US (1) | US6256095B1 (en) |
EP (1) | EP1118854A1 (en) |
JP (1) | JP3901948B2 (en) |
CN (1) | CN1196928C (en) |
AR (1) | AR027252A1 (en) |
AU (1) | AU772664B2 (en) |
BR (1) | BR0100136A (en) |
CA (1) | CA2330793C (en) |
CO (1) | CO5300491A1 (en) |
CZ (1) | CZ2001259A3 (en) |
EE (1) | EE200100036A (en) |
HU (1) | HUP0100133A3 (en) |
MX (1) | MXPA01000658A (en) |
PE (1) | PE20011070A1 (en) |
PL (1) | PL345235A1 (en) |
RU (1) | RU2259555C2 (en) |
ZA (1) | ZA200100480B (en) |
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- 2000-01-21 US US09/488,843 patent/US6256095B1/en not_active Expired - Lifetime
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- 2001-01-12 CA CA002330793A patent/CA2330793C/en not_active Expired - Fee Related
- 2001-01-17 ZA ZA200100480A patent/ZA200100480B/en unknown
- 2001-01-17 EP EP01100926A patent/EP1118854A1/en not_active Withdrawn
- 2001-01-18 MX MXPA01000658A patent/MXPA01000658A/en unknown
- 2001-01-18 EE EEP200100036A patent/EE200100036A/en unknown
- 2001-01-18 PL PL01345235A patent/PL345235A1/en not_active IP Right Cessation
- 2001-01-19 AU AU16373/01A patent/AU772664B2/en not_active Ceased
- 2001-01-19 BR BR0100136-1A patent/BR0100136A/en not_active Application Discontinuation
- 2001-01-19 AR ARP010100246A patent/AR027252A1/en active IP Right Grant
- 2001-01-19 PE PE2001000062A patent/PE20011070A1/en not_active Application Discontinuation
- 2001-01-19 RU RU2001101866/28A patent/RU2259555C2/en not_active IP Right Cessation
- 2001-01-19 CZ CZ2001259A patent/CZ2001259A3/en unknown
- 2001-01-20 CN CNB011116668A patent/CN1196928C/en not_active Expired - Fee Related
- 2001-01-22 CO CO01004218A patent/CO5300491A1/en not_active Application Discontinuation
- 2001-01-22 JP JP2001013383A patent/JP3901948B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CA2330793C (en) | 2006-10-10 |
ZA200100480B (en) | 2001-07-30 |
CA2330793A1 (en) | 2001-07-21 |
HU0100133D0 (en) | 2001-03-28 |
PE20011070A1 (en) | 2001-10-23 |
HUP0100133A3 (en) | 2004-12-28 |
CO5300491A1 (en) | 2003-07-31 |
AR027252A1 (en) | 2003-03-19 |
JP2001228093A (en) | 2001-08-24 |
EP1118854A1 (en) | 2001-07-25 |
JP3901948B2 (en) | 2007-04-04 |
HUP0100133A2 (en) | 2002-01-28 |
AU772664B2 (en) | 2004-05-06 |
PL345235A1 (en) | 2001-07-30 |
CZ2001259A3 (en) | 2001-09-12 |
MXPA01000658A (en) | 2002-08-20 |
EE200100036A (en) | 2001-10-15 |
RU2259555C2 (en) | 2005-08-27 |
BR0100136A (en) | 2001-10-16 |
CN1196928C (en) | 2005-04-13 |
AU1637301A (en) | 2001-07-26 |
US6256095B1 (en) | 2001-07-03 |
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